Language Of Chemistry Worksheet With Answer Key Page 5
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3
4
5Answers to Practice Problems
metal-nonmetal
Ex. 1: Circle all the examples below that are ionic compounds.
HCl
K
O
MgCl
PF
CuBr
CaSO
CH
O
2
2
5
2
4
2
nonmetals
Ex. 2: Circle all the examples below that are molecular compounds.
HCl
K
O
MgCl
PF
CuBr
CaSO
CH
O
2
2
5
2
4
2
Example3 :
2+
+
Ca
K
calcium =
___
______
potassium = ____
_____
2-
3+
S
Al
sulfur =
____
_____
aluminum = ____
_____
3-
-
N
Cl
nitrogen =
____
_____
chlorine = ___
______
+
2+
Ag
Zn
silver =
____
________
Zinc =
_____
_______
Ex 4
Ex 5
name
formula
copper(II) chloride
Na
CO
CuCl
sodium carbonate
2
3
2
strontium sulfide
CuBr
SrS
copper(II) bromide
2
nickel(II) chromate
SrF
NiCrO
strontium fluoride
2
4
magnesium nitrate
FeN
Mg(NO
)
iron(III) nitride
3
2
zinc carbonate
Ag
SO
ZnCO
silver sulfite
2
3
3
sodium phosphide
Ni(NO
)
Na
P
nickel(II) nitrate
3
3
2
potassium hydroxide
Cd
(PO
)
KOH
cadmium phosphate
3
4
2
calcium cyanide
NH
OH
Ca(CN)
ammonium hydroxide
4
2
MgSO
magnesium sulfate
4
Ex 6
carbon tetrafluoride, carbon monoxide, phosphorus pentaoxide, dinitrogen
tetrafluoride, P
I
, Br
O
, P
S
, H
CO
2
4
3
8
4
10
2
3
CHM 130: Chapter 7 Answers
page 5 of 5
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